English

An equivalent definition for multiplicities of a quaternionic eigenvalue

Differential Geometry 2022-12-21 v1

Abstract

In this paper we introduce two definitions for algebraic and geometric multiplicities of a quaternion right eigenvalue. This definitions are equivalent to the classical ones. However, differently from the usual definitions, the notions of root subspace and Jordan form of a quaternion matrix are not required and all the properties can be proved easily.

Keywords

Cite

@article{arxiv.2212.10195,
  title  = {An equivalent definition for multiplicities of a quaternionic eigenvalue},
  author = {Stefano Spessato},
  journal= {arXiv preprint arXiv:2212.10195},
  year   = {2022}
}
R2 v1 2026-06-28T07:44:23.898Z